Naphazoline Impurity 1

About Naphazoline Impurity 1

Naphazoline Impurity 1 is an impurity of Naphazoline carrying the CAS registry number 17518-47-7. The compound has the formula C12H11NS, corresponding to a molecular weight of 201.29 g/mol. Systematically, it is named 2-naphthalen-1-ylethanethioamide. It is also known as 1-Naphthaleneethanethioamide or 1-Naphthyl thioacetamide.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

This Naphazoline impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Naphazoline

View every impurity, metabolite and intermediate we list for Naphazoline.

Naphazoline impurities

Specifications & identifiers

Chemical identifiers
Product name	Naphazoline Impurity 1
Catalogue No.	VQ-038553
CAS Number	17518-47-7
IUPAC name	2-naphthalen-1-ylethanethioamide
Molecular formula	C₁₂H₁₁NS
Molecular weight	201.29 g/mol
Exact mass	201.0612
Grade	Reference Standard
HSN code	38229090
InChIKey	FUDCGMJJFOGQFO-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C=CC=C2CC(=S)N
PubChem CID	3033873

Physical properties
Physical form	Solid
LogP (XLogP3)	2.7
H-bond donors / acceptors	1 / 1
TPSA	58.1 Å²
Synonyms	1-Naphthaleneethanethioamide, 1-Naphthyl thioacetamide, 1-Naphthaleneacetamide, thio-, Acetamide, 2-(1-naphthyl)thio-, 2-(naphthalen-1-yl)ethanethioamide, 2-(1-Naphthyl)thioacetamide, 1-naphthylthioacetamide, (Naphthalen-1-yl)ethanethioamide, 2-(1-naphthyl)ethanimidothioic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Naphazoline Impurity 1?

The CAS Registry Number of Naphazoline Impurity 1 is 17518-47-7. It is also known as 1-Naphthaleneethanethioamide, 1-Naphthyl thioacetamide, 1-Naphthaleneacetamide, thio-.

What is the molecular formula and molecular weight of Naphazoline Impurity 1?

Naphazoline Impurity 1 has the molecular formula C12H11NS and a molecular weight of 201.29 g/mol. Its IUPAC name is 2-naphthalen-1-ylethanethioamide.

What is Naphazoline Impurity 1 used for?

Naphazoline Impurity 1 is supplied as a characterised reference material related to Naphazoline. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Naphazoline Impurity 1 can I order?

We supply Naphazoline Impurity 1 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Naphazoline Impurity 1?

Yes. Every lot of Naphazoline Impurity 1 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Naphazoline Impurity 1 be shipped internationally?

Yes. Naphazoline Impurity 1 is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.